Browse Forums Heating, Cooling & Insulation 1 Sep 01, 2009 11:15 pm I have the opportunity to install the pipework for this as the house is being finished and I'm looking for a sorce of information on the technical side of this. Pipe specs and size, fans if any and where, connections to the house: anything that could be useful please. Re: Buried pipe heat exchange cooling 2Sep 01, 2009 11:27 pm skoot I have the opportunity to install the pipework for this as the house is being finished and I'm looking for a sorce of information on the technical side of this. Pipe specs and size, fans if any and where, connections to the house: anything that could be useful please. I presume you mean a ground-source heat pump? If you are doing this DIY then good luck because the expertise is fairly limited in Oz. You could try contacting the ATA. http://www.ata.org.au/ Re: Buried pipe heat exchange cooling 3Sep 01, 2009 11:47 pm It's cooling I want, the pipes would be laid in permanently wet clay about 1 meter underground. It's really the physics of the airflow I need to understand, the size of pipes and diameter of bends if important etc. The rest is fairly simple I think. Re: Buried pipe heat exchange cooling 4Sep 02, 2009 8:54 am I assume you want to pass air through pipes under the house to cool the air. Do a search on earth tubes on HomeOne and you'll see some posts. I'm putting in some earth tubes. In my case, I've got two banks of 8 tubes each 15 m long (240 m of pipes!). The pipes are normal PVC pipes of 100 mm diameter. I'm putting a 1:100 fall to a pit to ensure any condensation drains away to avoid goobies growing. As far as driving air through them goes, I'm relying on the thermal stack effect where hot air wants to rise - just vent it to outside at the high point of the house. In my case, I'm providing extra assistance by way of some solar chimneys (four black anodised aluminium pipes, each of about 100 to 150 mm diameter). As the sun hits the tubes the air expands and travels up creating suction within the house. This is a little extra and the whole thing will be probably drive airflow even without this addition. Demolition August 2009, Construction Started September 2009, Completed December 2010 Re: Buried pipe heat exchange cooling 5Sep 06, 2009 9:19 pm Earth tubes yes set up correctly they are joy Where you are coming from is where you are going to... Re: Buried pipe heat exchange cooling 6Jan 02, 2010 2:07 pm I have read what you folks are saying re heat exchangeing, I am looking to create a cooling and heating system useing underground heat exchange method.My house allready has central heating and cooling pipeing but I dont know if they will be of use with a new system. Does any one know where some plans for these systems may be obtained ? Dickiapolos Re: Buried pipe heat exchange cooling 7Jan 02, 2010 3:21 pm Google is your friend But you will be able to utilize what you have Also prolly able to bypass and maintain existing infrastructure(sp?) Where you are coming from is where you are going to... Re: Buried pipe heat exchange cooling 8Jan 04, 2010 1:08 am info on earth tubes http://gundog.lbl.gov/dirpubs/SB06/kwangho.pdf http://www.ucalgary.ca/files/Earth%20tu ... %20Lee.pdf rehau does earth tubes they have alot of info just go their site here is an example of case study. My only concern is it looks expensive for a 3k saving a year. http://www.rehau.co.uk/files/Tesco_case_study_UK.pdf hope this helps hope this helps 0 4987 There may be answers here but can't find anything. I have a closed in veranda, four windows. North facing, just had sunblock blinds installed. A bit cooler (actually… 0 2983 yep sounds good make the footing bigger to to allow for the pipe in the middle 3 7331 |